参数资料
| 型号： | ISL8560IRZ-T |
| 厂商： | Intersil |
| 文件页数： | 2/17页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 2A 20QFN |
| 标准包装： | 4,000 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.21 V ~ 55 V |
| 输入电压： | 9 V ~ 60 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 100kHz ~ 600kHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 20-QFN（6x6） |
ISL8560
Absolute Maximum Ratings
Thermal Information
Input Voltage VIN . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 72V
Thermal Resistance (Typical, Notes 1, 2) θ JA (°C/W)
θ JC (°C/W)
Voltage at BOOT pin . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 82V
LX, RTCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 60V
REF, FB, SS, EN, SYNC, PGOOD pins. . . . . . . . . . . . . . . . . . . . .8V
VCC5* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 5.5V
Recommended Operating Conditions
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C
QFN Package. . . . . . . . . . . . . . . . . . . . 30 1.5
Maximum Power Dissipation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W
Maximum Junction Temperature (Hermetic Package or Die) . . +150°C
Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
Supply Voltage Range (Typical). . . . . . . . . . . . . . . . . . . 9.0V to 60V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
*An accidental short between VCC5 and GND may cause excessive heating and permanent damage to the device.
NOTES:
1. θ JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
3. Additional heatsinking may be required to insure that the junction temperature does not exceed above +125°C.
Electrical Specifications
Unless otherwise specified the specifications listed in the table are tested at T A = +25°C and guard band for the
full Temperature Range, V IN = 48V, V OUT = 5.0V, I OUT = 0A. Typical values are at T A = +25°C. Parameters
with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits
established by characterization and are not production tested.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
VIN SUPPLY
Input Voltage Range
9.0
24
60
V
VIN SUPPLY CURRENT
Shut-down Current
Operating Current
IDD
IDD
V IN = 9V, EN = HIGH
V IN = 60V, EN = HIGH
V IN = 9V, V FB = 1.5V
V IN = 60V, V FB = 1.5V
35
60
3.6
6.0
60
110
4
8.0
μA
μA
mA
mA
VCC5 SUPPLY (A 1μF capacitor is needed from VCC5 to GND)
VCC5 Output Voltage
Maximum Output Current
V IN = 9.0V to 60V, I L = 0mA to 5mA
V IN = 24V
4.9
5.0
5.1
5
V
mA
INPUT UV
Rising UV Threshold
7.8
8.9
V
UV Threshold Hysteresis
0.18
0.3
0.55
V
BUCK CONVERTER
Output Voltage (Note 3)
Maximum Duty Cycle
Minimum Controllable ON Time
I OUT = 2A
F = 300kHz
F = 300kHz
1.2
90
96
150
V IN - 5
V
%
ns
OSCILLATOR
Total Variation on Set Frequency
Over the V IN range with frequency set by
±10
%
external resistor and capacitor at RTCT
Frequency Range (Set by RTCT)
SYNC Range
Tested Oscillation Frequency
f OSC
f OSC
f OSC
V IN = 9V to 60V, R T = 100k Ω , C T = 1200pF
V IN = 9V to 60V, R T = 27.4k Ω , C T = 220pF
100
100
60
725
600
600
kHz
kHz
kHz
kHz
2
FN9244.7
September 19, 2008
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